摘要
按照液体分子运动理论导出Λb =RC″Tb-φ(C″)和 ( 4 .1 87/ 1 0 3) ( 1 8.2Tb+ 3 .2Tc-780 ) ,进而应用有机分子的半金属结构理论与光谱学的理论和实验成果 ,运用矩阵理论导出液体汽化热理论方程 .以 3 6类 2 58种极性与非极性的纯质实验值检验平均误差 0 .8% ,误差 <2 %的占总数的 96%以上 ,物理意义明确 .有重要的理论价值和广泛的实用价值 .显著优于文献中各式 .
On the basis of the Clausius Clapeyron equation and the kinetic theory of liquid we obtained Λ b =RC″T b -φ(C′)=f(T b , C′) and Λ b =4.187×10 -3 (18.2T b +3.2T c -780 ),and according to the rules of semi metal structural theoretic model of organic molecules and the theoretic and experimental results from molecular physics, spectroscopy and matrix method , a new theoretic equation (Eq.10) for calculating enthalpy of vaporization Λ b at normal boiling point is derived. Eq.10 is simple and reliable for calculating Λ b. The values C i and C e, required in this equation can be found in Table 3 . This equation can be applied both to nonpolar and polar liquids. The average error from experimental data is 0.8% based upon 258 compounds of 36 types of structures. It is far better than all other methods in literature. The physical essence of Eq.10 is clear and definite. This work is of important significance in the development of engineering thermodynamics and its practical application.
出处
《应用基础与工程科学学报》
EI
CSCD
2002年第1期8-17,共10页
Journal of Basic Science and Engineering
基金
国家自然科学基金资助 (2 97460 0 2 )
首钢总公司资助项目
